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Optics Letters

Optics Letters


  • Vol. 24, Iss. 21 — Nov. 1, 1999
  • pp: 1460–1462

Grating resonances in air-silica microstructured optical fibers

B. J. Eggleton, P. S. Westbrook, R. S. Windeler, S. Spälter, and T. A. Strasser  »View Author Affiliations

Optics Letters, Vol. 24, Issue 21, pp. 1460-1462 (1999)

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We report what is believed to be the first demonstration of optical fiber gratings written in photonic crystal fibers. The fiber consists of a germanium-doped photosensitive core surrounded by a hexagonal periodic air-hole lattice in a silica matrix. The spectra of these gratings allow for a detailed characterization of the fiber. In particular, the gratings facilitate coupling to higher-order leaky modes. We show that the spatial distribution and the effective index of these modes are determined largely by the design of the lattice and that the grating spectra are unaffected by the refractive index surrounding the fiber. We describe these measurements and corresponding simulations and discuss their implications for the understanding of such air-hole structures.

© 1999 Optical Society of America

OCIS Codes
(030.4070) Coherence and statistical optics : Modes
(060.2290) Fiber optics and optical communications : Fiber materials
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2400) Fiber optics and optical communications : Fiber properties

B. J. Eggleton, P. S. Westbrook, R. S. Windeler, S. Spälter, and T. A. Strasser, "Grating resonances in air-silica microstructured optical fibers," Opt. Lett. 24, 1460-1462 (1999)

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